Nepean Bay Weather Forecast

    • 10
    • 17

    Showers

    • 8
    • 17

    Showers easing

    • 8
    • 18

    Showers

    • 10
    • 19

    Showers

    • 9
    • 18

    Partly cloudy

    • 8
    • 19

    Showers

    • 8
    • 19

    Shower or two

Today 24 May Kangaroo Island

Cloudy. Very high chance of showers, becoming less likely in the afternoon. Winds north to northwesterly 15 to 25 km/h. Daytime maximum temperatures between 15 and 18.

Investigator Strait Coastal Waters

Wind
Northwesterly 15 to 20 knots turning northerly 10 to 15 knots in the late evening.
Seas
1 to 1.5 metres.
1st Swell
West to southwesterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A cold front will stall over central SA today as a low pressure system develops near Kangaroo Island. The low is expected to move north over the Eyre Peninsula early in the week, weakening as it moves into NSW. A trough may linger near the southern coasts before weak ridge of high pressure begins to move across SA later in the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

May Temperature

Kingscote Airport (7km)

  • Lowest 22 May, 2026

    4.9 °C

  • Average May

    14.1 °C

  • Highest 1 May, 2026

    27.1 °C

Climate (2021–Present)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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